Steam-proof vacuum pot and pot lid thereof

The invention relates to a steam-proof vacuum pot and a pot lid thereof. The steam-proof vacuum pot comprises a pot body and a pot lid, wherein an water outlet control plug of the pot lid comprise a plug body, a mandrel control unit and a button; a main spring of the mandrel control unit is sleeved at the upper part of a mandrel and is limited between an inner limiting barrel of a core barrel and a spring end cover which is arranged on the upper end of the mandrel; the lower end of the mandrel is provided with a gap and a sealing ring; when the mandrel slips downward along a sealing end cover through the elasticity of the main spring, the sealing ring is separated from the sealing end cover and the steam in the port is communicated with a steam release chamber through the gap, so that a steam release structure is formed; a buffer spring is sleeved outside the barrel body of the core barrel and is arranged between a limiting shoulder outside the barrel body of the core barrel and the upper side of the sealing